'Iron Man 3' star Rebecca Hall in a jumpsuit with plunging neckline

Rebecca Hall loves designer labels. While promoting her new film "Iron Man 3," Hall showed off her expensive tastes on the red carpet.

"Shopping is a bit of a relaxing hobby for me, which is sometimes troubling for the bank balance," Hall told Vogue UK. The British actress has professed her love on numerous occasions for the British brand Mulberry and has been seen sitting front row at the label's shows.

Hall doesn't experiment much with color, but she takes fit and texture to the extreme. For "Iron Man 3's" L.A. premiere, she donned a sheer black, embellished Prada dress with a zipper up the front.

"I've never actively followed trends, but I definitely know what I like and what I don't like," Hall said in the Vogue UK article. "I think fashion is a really important and empowering thing. I don't think it's superficial actually, I think it's very important. I love being able to express myself through what I wear and for it to be a way of expressing uniqueness and individuality."

For the "Iron Man 3" London premiere, Hall chose a Lanvin spring 2013 black jumpsuit with plunging neckline, an obi-style belt and Giuseppe Zanotti heels. She wore a bright poppy lip color and accessorized with De Beers jewelry and a Lanvin clutch.